Cambridge lost their opening game of the Loaded WaiBOP Championship, tumbling 3-1 to competition newcomers Kawerau Sports.
The visitors took an early lead, and then took control in the second half at John Kerkhof Park.
Cambridge pulled a goal back through Franco Rigourd in the 50th minute but lost Toby Hartley to a second yellow card late in the match.
Next weekend, Cambridge travel to meet the competition’s other newcomers, Te Puke United.
Matchday magazine
Fixture list
Click here to see who the Reds play next in the WaiBOP Championship
Red Rewind
How Cambridge won the 2017 WaiBOP Championship